Old-Fashioned Frittata with Citrus Zest

Method

1. Heat the oven and prepare your pan; measure unsalted butter and greek yogurt precisely.

2. Combine the dry and wet ingredients just until smooth, without overmixing.

3. Fold in black pepper and transfer the batter to the pan, leveling the top.

4. Bake until set and golden and a tester comes out clean.

5. Cool before slicing so the frittata holds its shape.